Circuit breakers



FIG. 1 is a perspective view of a first embodiment of the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a perspective view of a second embodiment of the new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left view thereof; and,

FIG. 14 is a right view thereof.

Broken lines in the drawings form no part of the design to be patented. 

CLAIM The ornamental design for circuit breakers, as shown and described. 